Welcome to The Tolkien Forum! Connect with fellow Tolkien enthusiasts and join a community that is over two decades old, and still going strong. We look forward to meeting you.
Register
Maybe you are confusing Smaug with Scatha. You're right that Smaug didn't consume the ring given to Durin but I thing it is a possible that Scatha got a different one. Why? Because supposedly each of the 7 rings was supposedly the foundation of a great hoard of dwarf treasure, and Scatha is known to have destroyed a dwarf colony and got their hoard. That's only inference though.
I'm not confusing these two drakes. there was only one Ring in each tribe and the kingdom Scatha destroyed was one of Longbeards' kingdoms. The ring was in Erebor at the time! And the treasure on Scatha wasn't big enough to be understood as one of these seven treasures.
Ståle: Where did you get those names?